/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License, Version 1.0 only
 * (the "License").  You may not use this file except in compliance
 * with the License.
 *
 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 * or http://www.opensolaris.org/os/licensing.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 */
/*	Copyright (c) 1988 AT&T	*/
/*	  All Rights Reserved  	*/


/*
 * Copyright (c) 1997, by Sun Mircrosystems, Inc.
 * All rights reserved.
 */

/*LINTLIBRARY*/

#include <sys/types.h>
#include "private.h"

int
set_current_item(MENU *m, ITEM *current)
{
	int top;

	if (m && current && Imenu(current) == m) {
		if (Indriver(m)) {
			return (E_BAD_STATE);
		}
		if (current != Current(m)) {
			if (LinkNeeded(m)) {
				_link_items(m);
			}

			top = Top(m);
			_chk_current(m, &top, current);

			/* Next clear the pattern buffer. */
			Pindex(m) = 0;
			IthPattern(m, Pindex(m)) = '\0';
			_affect_change(m, top, current);
		}
	} else {
		return (E_BAD_ARGUMENT);
	}
	return (E_OK);
}

ITEM *
current_item(MENU *m)
{
	if (m && Items(m)) {
		return (Current(m));
	} else {
		return ((ITEM *)0);
	}
}

int
item_index(ITEM *i)
{
	if (i && Imenu(i)) {
		return (Index(i));
	} else {
		return (-1);
	}
}
